WD mass and orbital period relation of sdB plus He WD binaries | |
Zhang YY(张扬扬)3,4,5; Chen HL(陈海亮)2,4,5; Xiong, Heran1; Chen XF(陈雪飞)2,4,5; Han ZW(韩占文)2,3,4,5 | |
刊名 | MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY |
2021-08 | |
卷号 | 505期号:3页码:3514-3519 |
关键词 | binaries:general stars:evolution subdwarfs white dwarfs |
ISSN号 | 0035-8711 |
DOI | 10.1093/mnras/stab1627 |
产权排序 | 第1完成单位 |
文献子类 | Article |
英文摘要 | Most subdwarf B (sdB) + Helium white dwarf (He WD) binaries are believed to be formed from a particular channel. In this channel, the He WDs are produced first from red giants (RGs) with degenerate cores via stable mass transfer and sdB stars are produced from RGs with degenerate cores via common-envelope (CE) ejection. They are important for the studies of CE evolution, binary evolution, and binary population synthesis. However, the relation between WD mass and orbital period of sdB + He WD binaries has not been specifically studied. In this paper, we first use a semi-analytic method to follow their formation and find a WD mass and orbital period relation. Then we use a detailed stellar evolution code to model their formation from main-sequence binaries. We find a similar relation between the WD mass and orbital period, which is in broad agreement with observations. For most sdB + He WD systems, if the WD mass (orbital period) can be determined, the orbital period (WD mass) can be inferred with this relation and then the inclination angle can be constrained with the binary mass function. In addition, we can also use this relation to constrain the CE ejection efficiency and find that a relative large CE ejection efficiency is favoured. If both the WD and sdB star masses can be determined, the critical mass ratios of dynamically unstable mass transfer for RG binaries can also be constrained. |
学科主题 | 天文学 ; 恒星与银河系 ; 恒星形成与演化 |
URL标识 | 查看原文 |
出版地 | GREAT CLARENDON ST, OXFORD OX2 6DP, ENGLAND |
资助项目 | National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC)[12090040] ; National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC)[12090043] ; National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC)[11521303] ; National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC)[12073071] ; National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC)[11873016] ; National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC)[11733008] ; Yunnan Province[202001AT070058] ; Yunnan Province[202101AW070003] ; CAS light of West China Program, Youth Innovation Promotion Association of Chinese Academy of Sciences[2018076] |
WOS关键词 | SUBDWARF-B-STARS ; ULTRAVIOLET-TELESCOPE OBSERVATIONS ; WHITE-DWARF MASS ; STELLAR EVOLUTION ; HOT ; ORIGIN ; UPTURN ; POPULATIONS ; COMPANION ; SINGLE |
WOS研究方向 | Astronomy & Astrophysics |
语种 | 英语 |
出版者 | OXFORD UNIV PRESS |
WOS记录号 | WOS:000671481700029 |
资助机构 | National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC)[12090040, 12090043, 11521303, 12073071, 11873016, 11733008] ; Yunnan Province[202001AT070058, 202101AW070003] ; CAS light of West China Program, Youth Innovation Promotion Association of Chinese Academy of Sciences[2018076] |
内容类型 | 期刊论文 |
版本 | 出版稿 |
源URL | [http://ir.ynao.ac.cn/handle/114a53/24492] |
专题 | 云南天文台_大样本恒星演化研究组 |
通讯作者 | Chen HL(陈海亮) |
作者单位 | 1.Research School of Astronomy and Astrophysics, Mount Stromlo Observatory, The Australian National University, ACT 2611, Australia 2.Center for Astronomical Mega-Science, Chinese Academy of Sciences, 20A Datun Road, Chaoyang District, Beijing 100012, China; 3.University of the Chinese Academy of Science, Beijing 100049, China; 4.Key Laboratory for the Structure and Evolution of Celestial Objects, Chinese Academy of Sciences, Kunming 650216, China; 5.Yunnan Observatories, Chinese Academy of Sciences, Kunming 650216, China; |
推荐引用方式 GB/T 7714 | Zhang YY,Chen HL,Xiong, Heran,et al. WD mass and orbital period relation of sdB plus He WD binaries[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2021,505(3):3514-3519. |
APA | Zhang YY,Chen HL,Xiong, Heran,Chen XF,&Han ZW.(2021).WD mass and orbital period relation of sdB plus He WD binaries.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,505(3),3514-3519. |
MLA | Zhang YY,et al."WD mass and orbital period relation of sdB plus He WD binaries".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 505.3(2021):3514-3519. |
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